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2 edition of Management effects on nitrogen nutrition and long-term productivity of western hemlock stands found in the catalog.

Management effects on nitrogen nutrition and long-term productivity of western hemlock stands

Donald Sachs

Management effects on nitrogen nutrition and long-term productivity of western hemlock stands

an exercise in simulation with FORCYTE

by Donald Sachs

  • 287 Want to read
  • 20 Currently reading

Published .
Written in English

    Subjects:
  • FORCYTE (Computer program),
  • Western hemlock.

  • Edition Notes

    Statementby Donald Sachs.
    The Physical Object
    Pagination[8], 63 leaves, bound :
    Number of Pages63
    ID Numbers
    Open LibraryOL14245198M

    Western-montane forest soils and landscapes are highly variable. The soils are forming from the interaction of many processes and materials. Each soil possesses a characteristic set of properties and processes, which must be understood to assure their management for long-term sustainability. Nine of the 11 soil orders are present. concentration of stands at risk of long term site productivity loss from N depletion is on young DF is Douglas-fir, WH is western hemlock, and values in parenthesis are the mean values from this study. The two numbers from Bigger and Cole are from two different stands of Douglas-fir. Effects of Nitrogen Fertilization on the Growth and. of the Oregon Forest Research Laboratory is to conduct well-coordinated, problem-solving research that enables management and use of Oregon’s forests for multiple values and products that meet society’s needs, with special attention to social and economic benefits. The Laboratory’s research provides information to. Soil Science Society of America Journal Abstract - Effects of clearcutting and soil mixing on soil properties and understorey biomass in western red cedar and western hemlock forests on northern Vancouver Island, Canada Long-Term Nitrogen Storage and Soil Nitrogen Availability in Post-Fire Lodgepole Pine Ecosystems.


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Management effects on nitrogen nutrition and long-term productivity of western hemlock stands by Donald Sachs Download PDF EPUB FB2

Management effects on nitrogen nutrition and long-term productivity of western hemlock stands: an exercise in simulation with FORCYTE Public DepositedCited by: 3.

Forest Ecology and Management, 17 () 25 Elsevier Science Publishers B.V., Amsterdam -- Printed in The Netherlands Potential Effects of Management Practices on Nitrogen Nutrition and Long-term Productivity of Western Hemlock Stands D.

SACHS and P. SOLLINS Department of Forest Science, College of Forestry, Oregon State University, Cited by: Sachs, D. and Sollins, P., Potential effects of management practices on nitrogen nutrition and long-term productivity of western hemlock stands.

For. Ecol. Manage., The FORCYTE computer model, developed by J.P. Kimmins and K. Scoullar for Douglas-fir Management effects on nitrogen nutrition and long-term productivity of western hemlock stands book in British Columbia, was modified to simulate growth and nutrient cycling of coastal.

Management effects on nitrogen nutrition and long-term productivity of western hemlock stands: an exercise in simulation with FORCYTE. Potential effects of management practices on nitrogen nutrition and long-term productivity of western hemlock stands.

For. Ecol. Manage., The FORCYTE computer model, developed by J.P. Kimmins and K. Scoullar for Douglas-fir forests in British Columbia, was modified to simulate growth and nutrient cycling of coastal western hemlock stands. EFFECTS OF DIFFERENT SOURCES OF FERTILIZER NITROGEN ON GROWTH AND NUTRITION OF WESTERN HEMLOCK Reference Abstract Radwan, M.

IA., and Dean S. DeBell. Effects of different sources of fertilizer nitrogen on growth and nutrition of western hemlock Management effects on nitrogen nutrition and long-term productivity of western hemlock stands book.

USDA For. Serv. Res. Pap. PNW, 15 p. select article Potential effects of management practices on nitrogen nutrition and long-term productivity of western hemlock stands. Potential effects of management practices on nitrogen nutrition and long-term productivity of Management effects on nitrogen nutrition and long-term productivity of western hemlock stands book hemlock stands.

Sachs, P. Sollins. Book review Full text access Effects of accumulation of air. Title. Effects of different sources of fertilizer nitrogen on growth and nutrition of western hemlock seedlings / Related Titles.

Series: Research paper PNW ; By. Radwan, M. A., DeBell, Dean S. Pacific Northwest Forest and Range. Long-term effects of nitrogen fertilization on the productivity of subsequent stands of Douglas-fir in the Pacific Northwest October Forest Ecology and Management (10)   Recent re-measurements of silvicultural trials in conifer plantations on nutrient-poor cedar-hemlock (CH) cutovers on northern Vancouver Island have confirmed co-limitation by nitrogen and phosphorus.

Repeated fertilization increased volumes of both cedar and hemlock on CH sites (at 2, stems ha−1) by about m3 ha−1 relative to unfertilized plots 22 years Cited by: 8. Nutrient Cycling: Effects on Productivity of Northwest Forests 19 TABLE Interpretation of foliar nutrient concentrations for five coniferous species (adapted from Ballard and Carter ).

Foliar concentration, % (drv-mass basis) Element Douglas-fir Lodgepole pine Western hemlock White spruce2 Western redcedar3 Interpretation of deficiencyFile Size: 8MB. Effects of different sources of fertilizer nitrogen on growth and nutrition of western hemlock seedlings.

USDA For. Servo Res. Pap. PNW, 15 p. Pacific Northwest Forest and Range Experiment Station, Portland, Oregon. Twelve different nitrogen (N) fertilizer treatments were tested on potted western hemlock (Tsuga heterophylla (Raf.).

Response of western hemlock crosses to nitrogen and phosphorus supply. T., Eriksson, G., Kahr, M., Lundkvist, K. and Norell, L. Interfamily variation in nitrogen productivity of Pinus sylvestris Influence of family and nitrogen fertilizer on growth and nutrition of western hemlock seedlings.

Res. Pap. PNW-RP Google Scholar Cited by: 2. Management Effects on Nitrogen Nutrition and Long-term Productivity of Western Hemlock Stands: An Exercise in Simulation with FORCYTE by Donald Sachs A THESIS submitted to Oregon State University in partial fulfillment of the requirements for the degree of Master of Science Completed Commencement June Eastern hemlock (Tsuga canadensis) exerts strong control on nitrogen (N) dynamics, and its loss due to infestation by the hemlock woolly adelgid (Adelges tsugae) is expected to decrease N retention in impacted stands.

We evaluated the potential for site variation in N availability to influence the magnitude of effects of hemlock decline on N Cited by: installations in precommerclally thlnned western hemlock stands and 8-year response of three western larch stands. Initial results from sixteen screenlng trials established in young stands of noble fir and Pacific silver fir are reviewed; first-year foliar N concentration and 2-year basal area growth increased significantly for fertilized Size: 8MB.

Sachs, D. and P. Sollins. Potential effects of management practices on nitrogen nutrition and long-term productivity of western hemlock stands.

Forest-Ecology-and-Management 17(1): Keywords: thinning. commercial thinning. yield. soil properties. computer modeling. Abstract:File Size: KB. The ultimate value of thinning and fertilizing infested forests as a method of pest management must be viewed in the larger context of the total effect on tree and stand productivity.

Mixing effects on stand productivity of various tree species mixtures in Central European forests derived from long-term Experiments.

For the same species assemblages we found that the mean stand height (-2 %) and tree diameter (+1 %) of mixed stands hardly differed from the weighted mean values of the neighbouring monocultures.

Nutrient Management to Improve Nitrogen Use Efficiency and Reduce Environmental Losses This fact sheet first describes the three main pathways of nitrogen loss--nitrate leaching, denitrification, and volatilization--and then summarizes requirements and provides nitrogen management guidance to help farmers comply with these requirements.

Donald Sachs has written: 'Management effects on nitrogen nutrition and long-term productivity of western hemlock stands' -- subject(s): FORCYTE (Computer program), Western hemlock Asked in.

Biomass and stand characteristics of a highly-productive mixed Douglas-fir and western hemlock plantation in coastal Washington. West. Appl. For. Footen, P.W., R.B.

Harrison, and B.D. Strahm. Long-term effects of nitrogen fertilization on the productivity of subsequent stands of Douglas-fir in the Pacific Northwest.

Ecology, 78(2),pp. – q by the Ecological Society of America NITROGEN MINERALIZATION AND PRODUCTIVITY IN 50 HARDWOOD AND CONIFER STANDS ON DIVERSE SOILS PETER B. REICH, 1DAVID F. G RIGAL, JOHN D. ABER,2 AND STITH T. G OWER3 1Department of Forest Resources, University of Minnesota, St.

Paul, Minnesota. The most up-to-date, comprehensive resource on silviculture that covers the range of topics and issues facing today’s foresters and resource professionals The tenth edition of the classic work, The Practice of Silviculture: Applied Forest Ecology, includes the most current information and the results of research on the many issues that are relevant to forests and forestry.

Donald Sachs has written: 'Management effects on nitrogen nutrition and long-term productivity of western hemlock stands' -- subject(s): FORCYTE (Computer program), Western hemlock. 4 Alfalfa Management Guide Surviving plants will be stunted and continue to yield less in subsequent years (Figure 2).

A waiting period after destroying the old stand is necessary to allow the toxic compounds to degrade or move out of the root zone of the new seedlings. Weather conditions influ-ence the speed with which the toxins are removed. EFFECTS OF NUTRIENT AND LIGHT LIMITATION ON MOUNTAIN HEMLOCK: SUSCEPTIBILITY TO LAMINATED ROOT ROT [Pamela A & Waring, Richard H Matson] on *FREE* shipping on qualifying : Matson, Pamela A & Waring, Richard H.

Tree Species Effects on Soils: Implications for Global Change 55 Impacts of Forest Harvesting on Long-Term Site Productivity Long-term nutrient cycling patterns in Douglas-fir and red alder stands: a simulation study Forest Ecology and Management Environmental Effects of Afforestation in North-Western Europe.

The curves in Fig. 2 exemplify this pattern of regulatory feedback by long-term N supply and plant N status on Effects of ammonium and nitrate on nutrient uptake and activity of nitrogen assimilating enzymes in western hemlock. Forest Ecology and Management.

Wong MH. Effect of nitrogen form and phosphorus source on the growth, nutrient Cited by:   Effect of CLA supplementation to low-protein diets on the growth performance, carcass characteristics, plasma urea nitrogen concentration, and fatty acid profile in the meat of pigs.

Brazilian Archives of Biology and Technology, Cited by: The effect of nitrogen nutrition on common pumpkin are different. But using suitable concentration and suitable time of application have significant effect on the productivity (seed dry weight, oil seed content, and Zn level) of medicinal pumpkin.

It seems applying of 75 kgha-1 of nitrogen treatment is most suitable for active substances of. Nitrogen (N) is the nutrient most often deficient for crop production in Minnesota, and its use can result in substantial economic return for farmers.

However, when N inputs to the soil system exceed crop needs, there’s a possibility that excessive amounts of nitrate may enter either ground or surface water. Long-term Effects of Repeated Urea Fertilization in Douglas-fir Stands on Forest Floor Nitrogen Pools and Nitrogen Mineralization.

Forest Ecology & Management pp. Sonne, E., E. Turnblom, D. Briggs, G. Becker   The nitrogen (N) cycle in terrestrial ecosystems is strongly influenced by resorption before litter fall and by mineralization after litter fall. Although both resorption and mineralization make N Cited by: 6.

Effects of nitrogen source and season of application on the nutrition and growth of lodgepole pine. Can. For. Res. – Kernaghan, G., S. Berch, and R. Carter. Effect of urea fertilization on ectomycorrhizae of year-old Tsuga heterophylla.

Postoperative Nitrogen Loss A Comparison of the Effects of Trauma and the Caloric Readjustment * Sidney C. Werner, David V.

Habif, H. Randall, and John S. Lockwood * Supported by a grant-in-aid from the Research Grants Division, National Institutes of Health, Bethesda, by: For example, of several young stands measured in western Oregon the majority were growing below their potential after the sites were tractor piled.

Likewise, when organic horizons are maintained or enhanced, seedling growth can be improved and long-term site productivity increased (Graham and others b, in press).

Productivity data were analyzed separately for each year with linear mixed-effects models assigning farm as a random effect and renovation status and pasture management as fixed effects.

A total of 21 different binary combinations or monocultures of seven pasture grasses and two legumes were evaluated for sward density, seasonal distribution of. Potential effects of management practices on nitrogen nutrition and long-term productivity of Western Hemlock Stands Sachs, D.; Sollins, P.

Defining stand-level sustainability. Tsuga mertensiana (Bong.)Carr. Mountain Hemlock. Pinaceae -- Pine family. Joseph E. Means. Mountain hemlock (Tsuga mertensiana) is usually found on cold, snowy subalpine sites where it grows slowly, sometimes attaining more than years in age.

Arborescent individuals that have narrowly conical crowns until old age ( to years) and shrubby krummholz on cold. Pdf and phosphorus excretions from dairy cattle are a major environmental pollutant. This book describes the latest knowledge in nitrogen and phosphorus nutrition of cattle including requirements, ruminal and total tract metabolism, possibilities of increasing the efficiency of nitrogen utilization and reducing nitrogen and phosphorus Cited by: Simulating ozone effects on forest productivity: interactions between leaf- canopy- and stand-level processes.

Ecological Applications Reich, P.B., D.F. Grigal, J.D. Aber and S.T. Gower. Nitrogen mineralization and aboveground net primary production in 50 stands in a cold-temperate forest biome.

Ecology Keyword: extension. Interim validation of the western hemlock growth intercept model. tree ebook stand growth responses to thinning and nitrogen and phosphorus fertilization in young Sitka spruce-western hemlock stands.

silviculture, forest genetics, ecology and earth sciences, yield valuable short and long-term information about how to.